[uh-pon, uh-pawn] 
| 1. | up and on; upward so as to get or be on: He climbed upon his horse and rode off. |
| 2. | in an elevated position on: There is a television antenna upon every house in the neighborhood. |
| 3. | in or into complete or approximate contact with, as an attacker or an important or pressing occasion: The enemy was upon us and our soldiers had little time to escape. The Christmas holiday will soon be upon us and we have hardly begun to buy gifts. The time to take action is upon us. |
| 4. | immediately or very soon after: She went into mourning upon her husband's death. |
| 5. | on the occasion of: She was joyful upon seeing her child take his first steps. |
| 6. | on (in any of various senses, used as an equivalent of on with no added idea of ascent or elevation, and preferred in certain cases only for euphonic or metrical reasons): He swore upon his honor as a gentleman. |
| up·on (ə-pŏn', ə-pôn') prep. On. See Usage Note at on. |
In the mod. Scand. tongues, except Icelandic and Færöese, the reduced form pa, paa, corresponding to Eng. (colloq. or dial.) 'po
upon
see act on (upon); call on (upon); chance on (upon); come across (upon); come on (upon); count on (upon); dawn on (upon); dwell on (upon); enter on (upon); fall back on (upon); fall on (upon); grow on (upon); hard on (upon); hit on (upon); incumbent upon; light on (upon); once upon a time; pitch on (upon); play on (upon); put upon; seize on (upon); set at (upon); take it upon oneself; wait on (upon); weigh on (upon); work on (upon).
